Chieftec Smart GPF-400P power supply unit 400 W 20+4 pin ATX TFX Grey

The CHIEFTEC SMART TFX 400W 80+Bronze is a compact power supply unit in TFX form factor designed for small PC cases. It delivers a total output of 400W with an 80 Plus Bronze efficiency rating and integrates protection features such as over-voltage, under-voltage and short-circuit protection to ensure stable and safe operation of system components.

Advantages

This PSU provides reliable 400W output in a space-saving TFX design suitable for compact builds. The 80+ Bronze certification improves energy efficiency and reduces heat generation. Built-in protections safeguard connected components, while quality internal components and quiet operation make it suitable for everyday systems where low noise and steady power delivery are required.

Suitable for (tasks / use cases)

• Small form-factor desktop PCs and compact HTPC builds
• Office and home computers with moderate power requirements
• Systems requiring reliable, efficient power delivery with basic protection features

Key specifications

• Brand: CHIEFTEC
• Model: SMART TFX
• Model number (MPN): GPF-400P
• Form factor: TFX
• Total output: 400W
• Efficiency rating: 80+ Bronze
• Protections: over-voltage, under-voltage, short-circuit protection
• EAN: 753263076809

How to use

Install the CHIEFTEC SMART TFX 400W power supply into a compatible TFX-compatible small case following the case manufacturer’s instructions. Connect the 24-pin ATX main connector and required peripheral connectors to the motherboard, drives and other components. Ensure all connectors are fully seated and cable routing does not obstruct cooling. Verify voltage selection if applicable and power on the system while monitoring for normal operation.

Recommendations

For reliable operation, use the PSU within its rated 400W capacity, keep the unit and case ventilation unobstructed, and periodically inspect cables and connectors. Avoid adding high-power GPUs or multiple power-hungry devices that exceed the unit’s specifications.